#include <stdio.h>

int main(){
    int n,i;
    printf("Enter a number: ");
    scanf("%d",&n);
    i=n>>31;
    if(i!=0){
        printf("negative\n");
    }else if(n==0){
        printf("zero\n");
    }else{
        printf("positive\n");
    }
    return 0;
}
